/* /meme/ — Meme Generator
 *
 * Dark, focused editor UI in the Imgflip / Canva genre. Three-column
 * layout on desktop (templates · stage · properties); collapses to
 * stacked sections on narrow screens.
 *
 * Typography note: meme text on the canvas defaults to Impact, which
 * is present on Windows + macOS + iOS by default. Where it isn't,
 * the cascade falls back to Haettenschweiler / Arial Narrow Bold /
 * a generic sans — close enough that memes still read as memes.
 */

:root {
  --bg-0: #0e1015;
  --bg-1: #161a22;
  --bg-2: #1d222d;
  --bg-3: #262d3b;
  --line: #2a3142;
  --text-0: #f3f5fb;
  --text-1: #c3c9d6;
  --text-2: #8a91a3;
  --accent: #4f8cff;
  --accent-hot: #6aa3ff;
  --accent-text: #ffffff;
  --danger: #ff6b6b;
  --ok: #36c08e;
  --shadow-1: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-2: 0 8px 24px rgba(0, 0, 0, 0.35);
  --radius: 10px;
  --radius-sm: 6px;
  --header-h: 56px;
  --meme-font: Impact, Haettenschweiler, 'Arial Narrow Bold', 'Franklin Gothic Bold',
    'Helvetica Inserat', sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  background: var(--bg-0);
  color: var(--text-0);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Top bar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 16px 0 130px; /* leave room for the global back button at top-left */
  background: var(--bg-1);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}

.topbar-left {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-width: 0;
}

.brand {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.brand-emoji {
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.5));
}

.brand-tag {
  color: var(--text-2);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-actions {
  display: flex;
  gap: 8px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.1s ease, border-color 0.1s ease, transform 0.05s ease;
  user-select: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
}

.btn-primary:hover {
  background: var(--accent-hot);
}

.btn-secondary {
  background: var(--bg-3);
  color: var(--text-0);
}

.btn-secondary:hover {
  background: #2f374a;
}

.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border-color: var(--line);
}

.btn-ghost:hover {
  background: var(--bg-2);
  color: var(--text-0);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-icon {
  padding: 6px 10px;
}

/* ---------- Main 3-column layout ---------- */

.app {
  display: grid;
  grid-template-columns: 280px 1fr 320px;
  gap: 0;
  height: calc(100vh - var(--header-h));
  min-height: 480px;
}

.panel {
  background: var(--bg-1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.panel-left {
  border-right: 1px solid var(--line);
}

.panel-right {
  border-left: 1px solid var(--line);
}

.panel-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 14px 10px;
  position: sticky;
  top: 0;
  background: var(--bg-1);
  border-bottom: 1px solid var(--line);
  z-index: 1;
}

.panel-header h2,
.panel-section h2 {
  margin: 0;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-2);
}

input[type='search'],
input[type='text'],
input[type='number'] {
  width: 100%;
  padding: 8px 10px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-0);
  font: inherit;
  outline: none;
}

input[type='search']:focus,
input[type='text']:focus,
input[type='number']:focus {
  border-color: var(--accent);
}

.upload-row {
  display: flex;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}

.upload-row .upload-btn {
  flex: 1;
  cursor: pointer;
}

/* ---------- Template grid ---------- */

.template-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  padding: 12px;
}

.tpl-card {
  position: relative;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.05s ease;
  aspect-ratio: 1 / 1;
}

.tpl-card:hover {
  border-color: var(--accent);
}

.tpl-card.is-selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}

.tpl-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tpl-card-label {
  position: absolute;
  inset: auto 0 0 0;
  padding: 6px 8px;
  font-size: 11px;
  color: #fff;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.85));
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- Editor stage ---------- */

.editor {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(circle at 30% 20%, #161b27 0%, #0c0e14 70%);
  /* CRITICAL: grid items default to `min-width: auto`, which means the
     1fr column refuses to shrink below the intrinsic width of its
     content (here .stage, which JS sizes explicitly in pixels). At
     narrow viewports that pushes .panel-right off-screen entirely.
     `min-width: 0` lets the column shrink — and our .stage already has
     `max-width: 100%`, so it follows the column down. */
  min-width: 0;
  min-height: 0;
}

.stage {
  position: relative;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111;
  box-shadow: var(--shadow-2);
  border-radius: var(--radius-sm);
  overflow: hidden;
  /* `manipulation` keeps useful pinch-zoom + pan but disables the
     250ms double-tap-zoom heuristic that fires when a drag is
     mistaken for a double-tap. Without this the stage flashes a
     browser zoom on quick repeated taps. */
  touch-action: manipulation;
  /* aspect-ratio + size constraints are set dynamically when an image
     loads. Before that, give the empty state a visible canvas so the
     "Pick a template…" hint actually appears. */
}

.stage:not([data-loaded='1']) {
  width: min(70vw, 520px);
  height: min(60vh, 360px);
}

#bg-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: 100%;
  height: 100%;
}

.overlay {
  position: absolute;
  inset: 0;
  pointer-events: none; /* boxes individually re-enable it */
}

.empty-state {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 24px;
  text-align: center;
  background: transparent;
  pointer-events: none;
}

.empty-title {
  margin: 0;
  font-size: 16px;
  color: var(--text-1);
}

.empty-sub {
  margin: 0;
  font-size: 12px;
  color: var(--text-2);
}

.stage[data-loaded='1'] .empty-state {
  display: none;
}

.stage-tip {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-2);
  min-height: 16px;
}

/* ---------- Draggable text boxes (overlay) ---------- */

.text-box {
  position: absolute;
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border: 1px dashed transparent;
  cursor: move;
  user-select: none;
  -webkit-user-select: none;
  transform-origin: center center;
  /* Without this, trackpad / touchscreen drags get interpreted as a
     native browser gesture (pan + pinch-to-zoom), which makes the
     whole viewport appear to zoom in while you're trying to move a
     text box. `none` makes the element a pure pointer-event surface. */
  touch-action: none;
  /* Same defense against iOS Safari's tap-to-zoom heuristic. */
  -webkit-tap-highlight-color: transparent;
}

.text-box:hover,
.text-box.is-selected {
  border-color: rgba(255, 255, 255, 0.35);
}

.text-box.is-selected {
  border-color: var(--accent);
  background: rgba(79, 140, 255, 0.05);
}

.text-box-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  outline: none;
  white-space: pre-wrap;
  word-break: break-word;
  text-align: center;
  /* The inner is just a display surface — text is edited in the
     sidebar, which keeps gestures away from the browser's
     text-selection / loupe behavior. Inherit the box's "move" cursor. */
  cursor: inherit;
  user-select: none;
  -webkit-user-select: none;
  /* Defaults; per-box overrides set inline via style attribute. */
  font-family: var(--meme-font);
  color: #fff;
  -webkit-text-stroke: 2px #000;
  paint-order: stroke fill;
}

.text-box-handle {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border: 2px solid #fff;
  border-radius: 50%;
  pointer-events: auto;
  opacity: 0;
  transition: opacity 0.1s;
  /* Same rationale as .text-box — keep gestures off the handles too. */
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.text-box.is-selected .text-box-handle {
  opacity: 1;
}

.text-box-handle.handle-resize {
  right: -6px;
  bottom: -6px;
  cursor: nwse-resize;
}

.text-box-handle.handle-rotate {
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  cursor: grab;
  background: var(--ok);
}

.text-box-handle.handle-delete {
  top: -22px;
  right: -6px;
  background: var(--danger);
  border-color: #fff;
  color: #fff;
  font-size: 10px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* ---------- Right panel ---------- */

.panel-section {
  padding: 14px;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.box-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.box-item {
  padding: 10px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.box-item.is-selected {
  border-color: var(--accent);
}

.box-item-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.box-item-header .box-handle {
  font-size: 11px;
  color: var(--text-2);
  flex: 0 0 auto;
}

.box-item-header .box-delete {
  margin-left: auto;
  background: transparent;
  border: 0;
  color: var(--text-2);
  cursor: pointer;
  font-size: 14px;
}

.box-item-header .box-delete:hover {
  color: var(--danger);
}

.box-item textarea {
  width: 100%;
  min-height: 50px;
  padding: 6px 8px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-0);
  font: inherit;
  resize: vertical;
}

.box-item textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.box-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 8px;
}

.box-controls label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11px;
  color: var(--text-2);
}

.box-controls select,
.box-controls input[type='number'],
.box-controls input[type='color'] {
  padding: 4px 6px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--text-0);
  font: inherit;
  font-size: 12px;
}

.box-controls input[type='color'] {
  padding: 2px;
  height: 28px;
  cursor: pointer;
}

.box-controls-row-full {
  grid-column: 1 / -1;
}

.box-toggles {
  grid-column: 1 / -1;
  display: flex;
  gap: 4px;
  margin-top: 4px;
}

.box-toggles button {
  flex: 1;
  padding: 4px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  color: var(--text-1);
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
}

.box-toggles button.is-on {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ---------- Sticker palette ---------- */

.sticker-palette {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.sticker-palette button {
  font-size: 18px;
  padding: 6px 0;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.1s;
}

.sticker-palette button:hover {
  background: var(--bg-3);
}

/* On-canvas sticker overlay element */
.sticker {
  position: absolute;
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: move;
  user-select: none;
  -webkit-user-select: none;
  border: 1px dashed transparent;
  transform-origin: center center;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
}

.sticker.is-selected {
  border-color: var(--accent);
}

.sticker-inner {
  font-size: 48px;
  line-height: 1;
  pointer-events: none;
}

.sticker .text-box-handle {
  opacity: 0;
}

.sticker.is-selected .text-box-handle {
  opacity: 1;
}

/* ---------- Controls ---------- */

.control {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-1);
}

.control > span:first-child {
  flex: 0 0 auto;
}

.control input[type='range'] {
  flex: 1;
  min-width: 0;
}

.control-value {
  flex: 0 0 40px;
  text-align: right;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
}

.panel-section-footer {
  margin-top: auto;
  border-bottom: 0;
}

.hint {
  margin: 0;
  font-size: 11px;
  color: var(--text-2);
  line-height: 1.5;
}

.hint a {
  color: var(--accent);
  text-decoration: none;
}

.hint a:hover {
  text-decoration: underline;
}

/* ---------- Toast / inline notifications ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  padding: 10px 16px;
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-0);
  font-size: 13px;
  box-shadow: var(--shadow-2);
  z-index: 100;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

.toast.is-ok {
  border-color: var(--ok);
}

.toast.is-err {
  border-color: var(--danger);
}

/* ---------- Responsive: stack on narrow screens ---------- */

@media (max-width: 1080px) {
  .app {
    grid-template-columns: 240px 1fr 280px;
  }
}

@media (max-width: 880px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    height: auto;
    min-height: 0;
  }

  .panel-left,
  .panel-right {
    max-height: 360px;
    border-right: 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .editor {
    padding: 16px;
    min-height: 60vh;
  }

  .template-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .topbar {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 16px 12px 110px;
    gap: 8px;
  }

  .brand-tag {
    display: none;
  }
}

@media (max-width: 520px) {
  .topbar {
    padding-left: 100px;
  }

  .topbar-actions .btn {
    padding: 6px 10px;
    font-size: 12px;
  }

  .sticker-palette {
    grid-template-columns: repeat(8, 1fr);
  }

  .template-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}